Following is the official word from the Oklahoma Department of Wildlife Conservation on the Texas Horned Lizard:
"The Texas horned lizard remains common in parts of western Oklahoma, but has shown a dramatic decline in both
range and population size in the eastern and central parts of the state since the 1960s. Several possible reasons have
been proposed for the decline, but little evidence exists to determine the true causes. The horned lizard's decline is
most likely the result of a combination of factors with the importance of each factor varying from one part of the
state to the next.
"The Texas horned lizard is classified as a 'Species of Special Concern.' In 1992, Oklahoma regulations established a
year-round closed season on these lizards and 20 other rare reptile and amphibian species. It is unlawful to kill,
capture, keep as pets or sell Texas horned lizards without specific written permission. While the Texas horned lizard
is not an endangered or threatened species, its widespread decline has caused concern for its future status. The
closed season is designed to protect it from unnecessary collection."
For further info, check out the link.
Texas Horned Lizard
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MichaelB